432 is less than one tenth of a tone from 440. I think detuning is interesting, but 432 is very subtle. I don't find it that compelling.
Tuning an entire tone lower Eb tuning is more interesting to me and the fact that Jimi Hendrix, and Stevie Ray Vaughn, and many others chose to do it adds a bit more weight. I think Hendrix did it because of bends and probably also from Albert King (who played upside down, in Em tuning (C-B-E-G-B-E))
I've been in a band that kept Eb as the standard. That was cool, but not mind-blowing. Made it easy to play along with Hendrix and SRV albums, though.
Weird side note: I host a jam and two guys showed up and insisted on playing in 432. They played too loud, refused to turn down, and when confronted, became belligerent, insulted the regulars, and threatened the hosts. Definitely not the harmonious new-age vibes commonly associated with 432, although YMMV :-)